USB 3D Active Glasses FOR SONY TV KDL-60NX720 KDL-55NX720 KDL-46NX720 KDL-40NX720 by New TV
1. Please charge the battery if it's drained. 2. Focus your 3D glasses towards TV front. 3. Make sure that the distance between TV and your 3D glasses is less than 1m. 4. Check the 3D function setting of your TV. 5. Touch on button again when viewing abnormally.